Home / 135,620.63-187,156.14-75,189.73

Finding the Fourth Proportional to 135,620.63, 187,156.14 and 75,189.73

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Solution

The fourth proportional to 135,620.63, 187,156.14 and 75,189.73 is: 103,761.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,620.63 : 187,156.14 = 75,189.73 : x
  2. Step 2: Convert to fraction form
    135,620.63/187,156.14 = 75,189.73/x
  3. Step 3: Cross multiply
    135,620.63x = 187,156.14 × 75,189.73
  4. Step 4: Simplify right side
    135,620.63x = 14,072,219,166.55
  5. Step 5: Solve for x
    x = 14,072,219,166.55/135,620.63
  6. Step 6: Final answer
    x = 103,761.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.